Electrical treating apparatus



Original Filed Oct. 27, 1927 "fig-.1-

2 Sheets-Sheet 1 iqTZ INVENTOR.

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p i E. o. FIREDERICS ELECTRICAL TREATING APPARATUS Qriginal Filed Oct27, 1927 ADD 2 M/M YES F077 15 HA? AND 3 MUY'IIES 2 Sheets-Sheet 2 INVEN TOR.

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Patented Apr. 18, 1933 UNITED STATES PA ENT OFFICE EnNEs'r o. FBEDERICS,0E NEW YORK, N. Y., AssIG oE TO E. EEEnE Ics, INQ, oENEw YonK, N. Y., ACORPORATION or NEw YORK ELECTRICAL TEEA' ING' APPARATUSOriginalapplication filed October 27, 1927, Serial No. 229,141. Dividedand this application filed March 28, 1920. Serial nasaaeia,

This invention relates to automatic timecontrolled circuit-breakingdevices, and par ticularly to that type of such devices in which anelectrical treating apparatus after a desired period of time, isautomatically shut off to avoid over-treatment; and is a division of mycopending application'Serial No. 229,- 141, filed October 27, 1927.

An object of the invention is to provide a device'of the type describedwhich will not only interrupt the circuit after a desired period oftime, but will allow of a uniform treatment with the apparatus undervarying voltage conditions. in the power line.

Another object of the'invention is to provide means ancillary to thetime-control switch whereby the operator may-adjust the time period tocompensate for voltage variations in the-power line.

Other objects of the invention will in part be obvious and will in partappear hereinafter.

The invention accordingly comprises the features of construction,combination of elements and arrangement of parts which will beexemplified in the construction hereinafter set forth, and the scope ofthe application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the inventionreference should be had to the following detailed description taken inconnection with the accompanying drawings, in which:

Figure 1 is a diagrammatic view of the wiring diagram of the novelapparatus connected to a power line and to a treating mechanism;

Fig. 2 is a plan View of one type of automatic time-control cut-oftdevice to which is applied the ancillary dosage indicator describedherein;

Fig. 3 is an enlarged detail view of the indicator per se; and

Fig. 1 is a diagrammatic view of the apparatus installed on apermanent-waving machine.

Referring to the wiring diagram shown in Fig. 1 of the drawings, thenumeral 10 desnates the leads of the power line; 11 the leads taken offfrom 10, and 12 the timecontrol switch which interrupts one of the 1leads 11 and has a switch mechanism 13' and a clock mechanism'l l; 15designates a, voltmeter bridged across the leads adjacent the switch 12;16 the fuses,and 17 an electrical treating apparatus, I

Although any desired type of time-control switch may be used withoutdeparting from the spirit of .the present invention, atype which'hasbeen found to be particularly detimer,Type T, manufactured by theLiebel- Flarsheim Company, of Cincinnati, Ohio. The present invention isnot particularly concerned with the'details of the automatic timecontrolswitch, but, in general, it may be a switch 13, which, in the L-F timer,is a toggle-switch, which istripped by the clock mechanism and whichwhen in its off'position acts to stop the clock mechanism.

In accordance with the principles of the' present invention, thevoltmeter 15 shown in detail in Fig. 3 is bridged across the leadscontrolled by the switch and is provided with a dual scale 19. Thisscale bears the usual voltage readings 20, particularly those volt ageswithin a range of 300 or so on either side of the normal voltage of 110,and an auxiliary scale 21, registering the minutes treatment requiredfor a given dosage at any particular voltage.

Although the apparatus provided by the present invention is adapted foruse on any electrical treatment apparatus in which accuracy of dosage isdesired, such as, for example, therapeutic machines, radiant heat andother types of lamps, Morse-wave generator, galvanic and sinusoidalapparatus and the like, it has been found to be particularly useful inconnection with permanentwaving machines.

If desired, the scale may indicate only treatment times as shown in Fig.2 at 19, the same having been calibrated as above, or other scales ofthe dual type may be ar- .60 sira'ble is that known as the L-F treatment.70 functions also as awmding mechanism, and

ranged for other types of treatment machines, but, in general, theprinciple is the same.

Furthermore, since the voltmeter canbe used separately from thetime-control switch as an indicator of the proper time for any desireddosage, it is to be understood that such use is within the scopeof" thepresent invention. In explanation of the scale figures given in Fig. 3,it might, be here explained that the usual time oftreatment with apermanent-waving ,machine when using a voltage of 110 is aboutieightminutes. The particular scale shown, therefore, is adjusted on .thisbasis to'compensate for variations in voltage. For example, if thevoltmeter shows 117 volts-when the circuit is cl0sed, the proper timefor treatment is indicated as seven minutes instead of eight, and theoperator takes this into consideration either in setting thetime-control mechanism when the voltmeter is used in combinationtherewith, or in shutting off the heater at "times if the voltmeter onlyis used. If desired, the dial of the voltmeter may also have printedthereon further'instructions to the operator, as indicated at 29, suchas Add two'minutes for fine'hair' and three minutes for extremely finehair. The use of the voltmeter with the time scale eliminates guesswork,insures correct treatment under varying Voltage conditions, and, whenused in combination with the time-controlled switch, automatically cutsofl the electricity at'the end of the treatment, thus allowing theoperator to utilize the intervening time in doing other work.Furthermore, the use of the present device has a psychological .4 value,in that it assures the customer not only that the treatment will becorrect, but that it will becut off at the proper time, regardlessof-the whereabouts of the operator.

Referring further to Fig. 4, there is here shown a diagrammatic view ofthe apparatus installed on a permanent waving machine of the typedescribed in my Patent No. 1,678,249, issued July 24th, 1928, on myapplication, Serial No. 130,873, filed August 23, 1926. When applied toa machine of this type the lead 11 coming off from the switch 13 isreplaced by two leads 11, which pass through independent switches 31 andfuses 16 and thence to the ring-connector 30, where they are attached toone'of the semicircular contact-ring sections 22 carrying thesocket-members 23. The other lead 11, which is not interrupted, alsopasses to the ring-connector 30, where it is connected with the circularcontact-ring 24, which carries the socket-members 25. Also, asis shownin my said copending application, the ringcontact members may beconnected with pilot lamps 26, which indicate when circuit isestablished between either of the semi- 5 circular rings 22 and the ring24, and the decourse, that this particular permanent-waving machine ismentioned by way of example and that'any other type of machine may beused.

Since certain changes may be made in the above construction, anddifierent embodi- .ments of the invention could be made, withoutdeparting from the scope thereof, it is intended that all mattercontained in the above description or shown in the accompanying drawingsshall be interpreted as illustrative and not in a limited sense.

- It is also to be understood that the following claims are intended tocover all of the generic and specific features of the inventionhereindescribed, and all statements of the scope of the invention whichas a matter of language might be said to fall therebetween.

Having described my invention, what I claim as new and desire to secureby Letters Patent, is:

1. In combination, an electrical treating apparatus, an adjustabletime-control switch controlling the same, and a voltmeter connectedacross the leads between the switch and the apparatus, said voltmeterhaving a scale thereon indicating the time of treatment necessary for adefinite dosage under varying voltage conditions.

2. In combination, an electrical treating apparatus, an adjustabletime-control switch controlling the same, and a voltmeter connectedacross the leads between the switch and the apparatus, said voltmeterhaving a dual scale, one portion of which indicates the voltage on theline, and the other portion of which indicates the time of treatmentnecessary under varying voltage conditions.

3. In an electrical supply system for use in connection with treatingdevices, the combination comprising an electric circuit adapted tosupply energy to said treating devices, a series connected time switch,an electric intensity reading instrument connected across said circuitprovided with an indicating hand and a dial having graduations thereonso coordinated with said circuit as to indicate the length of timenecessary for the persistence of said circuit which will give a propertreatment of definite dosage under varying electrical conditions of saidcircuit.

4. In an electrical supply system for use in connection with treatingdevices, a circuit comprising a series switch and clock mechanismtherefor, and a device provided with an indicating hand and a dialhaving graduations so coordinated with said circuit as to indicate thetime interval during which said clock mechanism shall leave said switchmechanism closed, and the length of which is necessary for thepersistence of said circuit, which will give a proper treatment ofdefinite dosage under varying electrical conditions of said circuit.

5. An electrical supply system for use in connection with an electricaltreating apparatus, including an electrical supply circuit, a devicecomprising a series switch mechanism, a clock mechanism for controllingsaid switch mechanism, and an electrical instrument provided with scalesadapted to show the voltage being used and the time interval for whichsaid clock mechanism must be set to give a proper treatment for adefinite dosage under varying voltage conditions.

6. In an electrical supply system for use in connection with anelectrical treating apparatus, including an electrical supply circuit, adevice comprising electrical heating units, a series switch mechanismand a clock mechanism, an electric measuring instrument, a scale thereongraduated to read volts, and a second. scale thereon, so disposed withreference to said first scale that said instrument indicates the timeinterval for which the said clock mechanism is to be set to actuate saidswitch at the end of a heat instrument period necessary for a definitedosage under varying voltage conditions.

7. In combination, an electric circuit for a heating device, a clockadapted to be set to open said circuit after a predetermined time, andmeans for indicating the proper setting of said clock according to thevoltage in said circuit.

8. In combination, an electric circuit for a heating device, a clockadapted to be set to open said circuit after a predetermined time, meansfor indicating the voltage in said circuit, and means for setting saidclock to operate at different times according to said voltage.

9. In combination, an electric circuit for an electrical heating device,a voltmeter in said circuit, a clock adapted to be set for opening saidcircuit after a predetermined time, and means for indicating the propersetting of said clock according to the operation of said voltmeter.

10. In a device of the class described, an electric circuit, a clockadapted to open said circuit at a predetermined time which may be variedwith each operation of the device, a voltmeter in said circuit includingan indi cating hand, and a scale associated with said voltmeter wherebysaid hand automatically indicates the time for which said circuit shouldremain closed for a particular operation.

In testimony whereof I afliX my signature.

ERNEST O. FREDERICS.

